Hi there.

After following the guide on setting up the dependencies for the iOS sdk, the flow would look something like this:

1. Create a manager instance:

var terra: TerraManager

Terra.instance(devId: "<YOUR-DEV-ID>", referenceId: "<YOUR-INTERNAL-USER-ID>") { manager, error in
    if error == nil {
        terra = manager
    }
}

2. Generate an auth token. For this, you should implement a backend endpoint to get the token from Terra using your dev-id, x-api-key and then call this endpoint from your mobile app (protected by your auth). For example

@app.get('/terra/sdktoken')
def get_terra_sdk_token():
    # perform auth for your user if required

    headers = {
      "dev-id": "<YOUR-DEV-ID>",
      "x-api-key": "<YOUR-API-KEY>"
    }

    response = requests.post("https://api.tryterra.co/v2/auth/generateAuthToken", headers=headers)

    data = response.json()
    
    return { 'token': data['token'] }

And then request this endpoint from your app and use the token

3. Then initialise a connection, which should pull up the HealthKit permissions screen (this only needs to be done once):

terra.initConnection(type: .APPLE, token: token, customReadTypes: [], schedulerOn: true) { success, error in
    if !success {
        print("Failed to initialise connection")
    }
}

4. Now request data as desired (ensuring you use swift date objects):

terra.getDaily(type: .APPLE, startDate: Date, endDate: Date, toWebhook: true)